package com.feng.config;

import com.feng.filter.SecurityFilter;
import com.feng.handler.AccessFilter;
import com.feng.handler.AuthenticationFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private SecurityFilter securityFilter;

    @Autowired
    private AuthenticationFilter authenticationFilter;

    @Autowired
    private AccessFilter accessFilter;

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问
                .antMatchers("/user/login").anonymous()
                .antMatchers("/user/loginOut").authenticated()
                .antMatchers("/comment").authenticated()
                .antMatchers("/user/userInfo").authenticated()
                .antMatchers("/upload").authenticated()
//                .antMatchers("/testCors").hasAuthority("system:dept:list222")
                // 除上面外的所有请求全部不需要鉴权认证
                .anyRequest().permitAll();

        http.exceptionHandling()
                        .authenticationEntryPoint(authenticationFilter)
                                .accessDeniedHandler(accessFilter);

        http.logout().disable();

        http.addFilterBefore(securityFilter, UsernamePasswordAuthenticationFilter.class);

        http.cors();
    }

    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}
